并参照国家食品卫生标准和蔬菜质量分级标准评价了蔬菜的重金属污染程度。
According to national hierarchical standard of heavy metal to appraise vegetables, sanitary standard of food and quality of vegetables, polluted degree of heavy metals has been evaluated.
参照国家食品卫生标准和蔬菜质量分级标准，对蔬菜的重金属污染程度进行了安全性评价。
The safety of vegetable pollution by heavy metals was evaluated referring to national food hygienic and vegetable quality gradation standards.
用于水环境质量评价的方法较多，而灰色关联分析法主要体现的是待评价样本与环境质量分级标准在整体上的关联程度。
There are many methods to evaluate water environment quality. The gray relation method mainly reflects the correlation degree between sample and environmental criterion.
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